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9v to +/- 50V DC-DC converter

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lavince

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Hi, I am trying to design a module that can supply +/- 50V with 150mA from a 9v battery. I looked at Max668 and Max15005, and seems Max15005 has the capability, but I just can't figured out how to modify the application circuit to fit my need.
Does anyone have any tricks or ideas on how to design one?

Thanks!
 

Assuming you are using a small rectangular 9V battery... it is not possible!
Even with 100% efficiency:
50V*0.15A=7.5W
7.5W/9V=0.833A
9v batteries are only capable of supplying a few 10's of mA.

Ken
 

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